Turn-table.



J. M. BAKER.

TURN TABLE. APPLICATION FILED M121, 1910.

n. QL m; 5 V 2 mm M A a M h m J. M. BAKER.

TURN TABLE. APPLICATION FILED 312.21, 1910.

Patented Ali 23, 1910.

2 HEIGHTS-SHEET 2.

wise-$68,

JEAN M. BAKER, OF LOS ANGELES, CALIFORNIA.

TURN-TABLE.

Specification of'Letters Patent. Patented Aug. 23, 1910.

Application filed February 21, 1910. Serial No. 545,220.

To all whom it mag concern:

Be it known that I, JEAN M. BAKER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Turn-Table, of which the following is a specification.

This invention relates to automobile turntables especially adapted for use in garages, and the main object of the invention is to provide a turn-table whereby the space in the garage is economized to the fullest extent and no pit is required for the turn-table, the turn-table being capable of traveling bodily to carry the automobile along an aisle or passageway between two rows of stalls until the automobile is in front of its stall when the turn-table may be stopped and then turned one-quarter way around to bring the automobile into proper position for being moved into the stall. Thus with such a turn-table the passageway need be no wider than the diameter of the circle described by the turn-table in turning, while the stalls,

may, of course, be arranged as close to ether side by side as advisable to allow su cient space for the width of the-automobiles when in the stalls.

The present invention, while possessing the same advantages and objects, embodies a construction of turn-table which is more economical than the construction shown in the other application referred to wherein the turn-table is suspended by and adapted to travel along an overhead structure. In the present application the overhead structure is eliminated and the turn-table is provided with its own wheels adapted to travel on the floor of the garage.

In the accompanying drawings which illustrate two forms of the invention: Fig ure 1 is a plan view of one form of the turntable. Fig. 2 is a section on line m m Fig. 1'. Fig. 3 is a front elevation of another form of turn-table showing the automobile in position. Fig. 4 is a vertical, longitudinal section on line mm* Fig. 3.

In the form shown in Figs. 1 and 2, 1' designates the automobile supporting rails of the turntable, the ends 2 of which are bent down I to form inclined approaches at the floor line.

On the inner side of each rail 2 is a pair of channel bars 3 and 4, the rail 2 being riveted to the channel bar 4 and the two pairs of channel bars being connected by cross bars 5 and (3. At each end of each pair of channel bars is a wheel 7 which travels on the floor except when lifted free from the floor, as will be described. The cross bars 5 are firmly braced and secured tothe channel bars 8 by plates 8 which also serve .to connect the two channel bars 3 and 4 together.

At the center of the turn-table is a pedestal 9 having a central vertically-pro ecting stationary piston 10 which'has a conlcal depending central portion 11. Slidably fit ting over the piston 10 is a cylinder 12 which is secured by brackets 13 to the cross bars 6 and by brackets 14 to cross bars 15 which extend between the cross bars 6. Cylinder 12 also has a depending conical centralportion 16 ,which nests within the conical central portion ll-of the piston and by forcing fluid into the cylinder 12, the cylinder,rtogether with all parts of the turn-table except the' pedestal and piston, will be lifted. vFluid may be forced into the cylinder 12 through a pipe 17 which extends to one end of the turn-table and communicates with a pump 18, which'may be "operated by a hand lever 19. A pipe 20.ex'tends from the pump to a supply tank 21 supported on one of the channel bars 17. i

22 and 23' are pump valves, valve 22 being arranged between the pipe 20 and pump and permitting fluid to pass from the Supply cylinder to the pump, but preventing its passage in the opposite direction; while valve 23 permits fluid to pass from the pump through the pipe 17 and thence to the cylinder 12 and prevents it from passing back through pipe 17 into the pump. A release valve 24 is provided in a branch pipe 25 which extends around the pump from pipe 17 to pipe 20 and should'beclosed while the pump is being operated to force fluid into the cylinder 12 to raise the turn-table. When it 1s desired to lower the turn-table, the valve 24 is opened which permits the fluid to pass backward from pipe 17 into ingly in the nut 31, there the pipe 20 and thence back to the supply cylinder 21. Thus byoperating the pump fluid may be forced into the cylinder 12 to lift the turn-table together with the automobile dn it, so that the wheels 7 are clear of the floor and when so lifted the turntable is supported by the pedestal 9 which rests upon the floor while thecylinder 12 is supported by the fluid within it, which in turn rests upon the piston, and when in this position the turn-table may be turned in either direction, the cylinder revolving aroundthe stationary piston, the only friction being that between'the side walls of the piston cylinder, the fluidbetween the heads of the piston andcylinder obviating friction at those points.

After the turn-table has been lowered so that the wheels rest upon the floor and it' is desired to move the turn-table along the floor, it is obvious that the pedestal 9 would drag upon the floor unless it were lifted and for this purpose I provide the coil spring 26, the lower end of which presses against the outer side of the cylinder head 12, while-the upper end of the spring presses against a nut 27 on the upper end of a bolt 28 which extends freely through the cylinder head and is screwed to the piston. Thus the pressure of the spring 26 acts upwardly on the bolt 28 tending to lift the latter together with the pedestal. The pedestal is thus automatically lifted clear of the floor whenever the fluid has been allowed to escape from the cylinder 12. As soon, however, as the fluid is forced into the cylinder 12, its first action is to depress the pedestal 9 into contact with the floor before any lifting action of the turn-table occurs.

In the form shown in Figs. v3 and 4, the construction is similar to the preceding form, encept that in place of the hydraulic, mechanism for lifting the turn-table, I employ a screw and gear mechanism. In this form, 30 designates the pedestal which is formed with a central nut 31 and an annular flange 32 which is slidably guided in a cylindrical center casting 33 which corre* sponds to the cylinder 12 of'the preceding form and to which the framework of the automob1le is attached and is supported thereby. Rotatably mounted in the casting 33 and depending therefrom is a screw 3 1. wlnch passes through the nut 31 and above the nut is provided with a bevel gear 35 which is driven by a bevel pinion 36 on the end of a shaft 37, the inner end of which is 1ournaled in the casting 33, the outer end of the shaft 37 being journaled in a bracket 38. A crank 39 is provided on the end of the shaft 37 for turning the latter and by rotating the shaft 37 in either direction, the

screw 34 will be moved up or down accordy raising or lowering the turntable. When the wheels 7 rest upon the floor, the pedestal 30 may be lifted free from the floor by a slight turn of the shaft 37 What I claim is 1. A turn-table comprising a vehicle sup-- port onto which the vehicle to be turned may be driven, wheels journaled on said support to enable the support to travel longitudinally along the floor, a pedestal adapted to rest on the floor, said vehicle support being revoluble-with respect to the pedestal, and means for moving said vehicle support vertically on said pedestal.

2. A turn-table comprising a vehicle support onto which the vehicle to be turned may be driven, wheels journaled on said support to enable the support to travel longitudinally along the floor, a pedestal adapted to rest on the floor, said vehicle support being revoluble with respect to the pedestal, means for movin said vehicle support vertically on said pedestal, and means for lifting said pedestal clear of the floor when said wheels rest on the floor.

3. A turn-table comprising a vehicle support, a pedestal at the center of said vehicle support and provided with a vertical piston, a cylinder supporting the vehicle support and nesting with said piston, wheels for carrying the vehicle support longitudinally on the floor, and means for controlling the admission and exhaust of fluid to and from the cylinder.

4. A turn-table comprising a vehicle support, wheels mounted thereon to permit the vehicle support to travelalong the floor, and means for lifting said support and wheels clear of the floor comprising a central pedestal provided with a piston, a cylinder nested with said piston and supporting the vehicle support, a storage cylinderon said vehicle support, a pump at one end of the vehicle support, means for operating said pump, and means for conveying fluid between said storage cylinder and pump and between said pump and first named cylinder.

5. A turn-table comprising a vehicle support, a pedestal provided with a piston, a

6. A turn-table comprising a Vehicle support, a pedestal provided with a piston, a cylinder nested with the piston and supporting the vehicle support, said cylinder being revoluble on the piston, means for admitting fluid to and from the cylinder, and means for automatically lifting said pedestal from 968,229 a I a the 11001 when the fluid is allowed to exhaust from the cylinder, said last means comprising a bolt attached to the iston and extend: 27th day of J anuary1910. ing through'the' head 0 said cylinder, a- JEAN M. BAKER. 5 head on the bolt, and a compression spring In presence of a between said bolt head and the head of the ANDREW H; CLIMIE, cylinder. a MILO A. BAKER.

In testimony whereof, I have heieiinto set my hand at Los Angeles, California, this 

